CVE-2015-7515: linux linux_kernel NULL Pointer Dereference
Vulnerability summary
CVE-2015-7515 is a medium (CVSS 4.9) NULL Pointer Dereference vulnerability in linux linux_kernel. EPSS estimates a 1.80% chance of exploitation in the next 30 days, higher than 78.5% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 4.6, physical access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 9 · Related 8Timeline
- 27-04-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The aiptek_probe function in drivers/input/tablet/aiptek.c in the Linux kernel before 4.4 allows physically proximate attackers to cause a denial of service (NULL pointer dereference and system crash) via a crafted USB device that lacks endpoints.
CVSS metrics
5 scores · 3 sources · 3 versions- OSV · UbuntuEcosystem advisory · calculated4.6MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated4.6MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
1.80%
Chance of exploitation in the next 30 days
Percentile
79%
Versus all other CVEs
30-day change
No change 0.00 pp
From 1.80% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
1 foundLinux Kernel 3.10.0 (CentOS / RHEL 7.1) - 'aiptek' Nullpointer Dereference
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Known conditions: physical access, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu21 products
- linux< 3.13.0-86.130
- linux-azureAll versions (No fix recorded)
- linux-azure-6.11All versions (No fix recorded)
- linux-azure-fdeAll versions (No fix recorded)
- linux-azure-fde-5.15All versions (No fix recorded)
Debian1 product
- linux< 4.4.2-1
Linux1 product
- linux_kernel< 4.4 | 4.4:rc1 | 4.4:rc2 | 4.4:rc3 | 4.4:rc4 | 4.4:rc5 | 4.4:rc6 | 4.4:rc7 | 4.4:rc8
3 vendors · 23 products
References
31 linksShow all 31 references
- lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
- github.com/torvalds/linux/commit/8e20cf2bce122ce9262d6034ee5d5b76fbb92f96X Refsource CONFIRMVendor Advisory
- lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory